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25 Cards in this Set
 Front
 Back
a commonly used mathematical model for electrical and computer systems

circuit model


the elements that comprise the circuit model

ideal circuit components


based on mathematical techniques and is used to predict the behavior of the circuit model and its ideal circuit components

circuit analysis


the actual electrical system, constructed from actual electrical components

physical prototype


the energy per unit charge created by the separation

voltage


the rate of charge flow

electric current


points of connection to other circuiet components

terminals


has only 2 terminals, described mathematically, cannot be subdivided into other elements

ideal basic circuit element


whenever the reference directions for the current in an element is in the direction of the reference voltage drop across the element, use a positive sign in any expression that relates the voltage to the current

passive sign convention


the product of the current in the element and the voltage across the element

power


a device that is capable of converting nonelectric energy to electric energy and vice versa

electrical source


a circuit element that maintains a prescribed voltage across its terminals regardless of the current flowing in those terminals

ideal voltage source


a circuit element that maintains a prescribed current through its terminals regardless of the voltage across those terminals

ideal crrent source


establishes a coltage or current in a circuit without reling on voltages or currents elsewhere in the circuit

independent source


establishes a voltage or current whose value depends on the value of a voltage or current elsewhere in the circuit

dependent source


models a device capable of generating electric energy

active element


models physical devices that cannot generate electric energy

passive elements


the capacity of materials to impede the flow of current or the flow of electric charge

resistance


the circuit element used to model resistance

resistor


v=iR
v=iR 
Ohm's law


the recipricol of resistance

conductance


the algebraic sum of all the currents at any node in a circuit equals 0

Kirchhoff's Current Law


a point where two or more circuit elements meet

node


the algebraic sum of all the voltages around any closed path in a circuit equals 0

Kirchhoff's Voltage Law


when just two elements connect at a single node

series
